Lesson 5.4 Practice

When should you use the Pythagorean Theorem?

• When you are given two sides and need the third side

• When you are given an angle and a side

• When you need to find an angle

• When you have all three sides

Tags

CCSS.8.G.B.8

What is the formula for Tan θ in trigonometry?

• Tan θ = Opposite / Adjacent

• Tan θ = Adjacent / Hypotenuse

• Tan θ = Opposite / Hypotenuse

• Tan θ = Hypotenuse / Opposite

Tags

CCSS.HSG.SRT.C.6

What is the formula for Cos θ?

• Cos θ = Adjacent / Hypotenuse

• Cos θ = Opposite / Hypotenuse

• Cos θ = Hypotenuse / Adjacent

• Cos θ = Opposite / Adjacent

Tags

CCSS.HSG.SRT.C.6

In a right triangle, which side is the hypotenuse?

• The side opposite the right angle

• The side adjacent to the right angle

• The shortest side

• The side opposite the smallest angle

What is the value of sin(90° - θ)?

• cos(θ)

• sin(θ)

• tan(θ)

• 1 - sin(θ)

Tags

CCSS.HSG.SRT.C.7

If tan A = 3/4, what is the value of tan B (the complement)?

• 4/3

• 3/4

• 1

• 7/12

Tags

CCSS.HSG.SRT.C.7

What should you do first when applying trig functions to find missing values?

• Determine what is known and what is needed

• Enter values into the calculator

• Guess the answer

• Draw a random triangle

Tags

CCSS.HSG.SRT.C.8

If you have two sides and need an angle, which method should you use?

• Inverse Trig Function

• Pythagorean Theorem

• Trigonometric Function

• Law of Sines

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

What is the formula for finding an angle using cosine?

• θ = cos⁻¹(adjacent leg / hypotenuse)

• θ = sin⁻¹(adjacent leg / hypotenuse)

• θ = tan⁻¹(adjacent leg / hypotenuse)

• θ = cos(adjacent leg / hypotenuse)

Tags

CCSS.HSG.SRT.C.8

What is the formula for finding an angle using tangent?

• θ = tan⁻¹(opposite leg / adjacent leg)

• θ = sin⁻¹(opposite leg / adjacent leg)

• θ = cos⁻¹(opposite leg / adjacent leg)

• θ = tan(opposite leg / adjacent leg)

Tags

CCSS.HSG.SRT.C.8